From 07e18043145f3d91c8ea7ec3ad41b3c905585277 Mon Sep 17 00:00:00 2001 From: Ethan Werner Date: Wed, 1 Jul 2026 09:42:39 +0400 Subject: initial commit: ts time series analysis library v0.1.0 - 354 financial and mathematical time-series indicators - Uniform C11 API with consistent function signatures - 349 passing tests with -Werror - Static and shared library builds - pkg-config integration - Python bindings - Fuzzing and sanitizer support - Security hardening flags --- test/atanh.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 test/atanh.c (limited to 'test/atanh.c') diff --git a/test/atanh.c b/test/atanh.c new file mode 100644 index 0000000..91a9169 --- /dev/null +++ b/test/atanh.c @@ -0,0 +1,35 @@ +#include +#include +#include "ts.h" + +bool ts_test_atanh( void ) +{ + fp_t const x0[] = { -0.900000, -0.500000, 0.000000, 0.500000, 0.900000 }; + fp_t const e0[] = { -1.472219, -0.549306, 0.000000, 0.549306, 1.472219 }; + + fp_t const * const x[1] = { x0 }; + fp_t const * const e[1] = { e0 }; + + bool result = ts_test(ts_atanh, ts_atanh_offset, x, e, sizeof( x0 ) / sizeof( *x0 ), (ts_constant_t *)NULL, &ts_atanh_p); + + fp_t const xb[] = { -1.000000, 1.000000, -1.500000, 1.500000 }; + fp_t const eb[] = { -INFINITY, INFINITY, NAN, NAN }; + + for( uint_t i = 0; i < sizeof( xb ) / sizeof( *xb ); ++i ) + { + fp_t tmp = 0; + fp_t const * const xi[1] = { &xb[i] }; + fp_t * const yi[1] = { &tmp }; + ts_atanh(yi, 1, xi, 1, 1, NULL); + if( isinf( eb[i] ) ) + { + result &= isinf( tmp ) && signbit( tmp ) == signbit( eb[i] ); + } + else if( isnan( eb[i] ) ) + { + result &= isnan( tmp ); + } + } + + return result; +} -- cgit v1.3.1